In the third round Evans will meet 19th seed Tommy Robredo, with the victor to face the winner of the contest between Federer and Adrian Mannarino.

Evans will be the underdog against Robredo on Saturday, but no more than he has been in his first two rounds, making the prospect of a meeting with Federer tantalising.

Not that Evans was willing to look ahead when he was asked about it in his press conference on Thursday, saying: "If I said to any of you guys that I play Federer in the fourth round, you would have laughed at me, so I'm not going to answer that."

If they do end up meeting, it will be for the second time this week after Evans was invited to practise with Federer on Wednesday.

"It was amazing actually to hit with someone so good," he said.

"I really enjoyed it. We actually had a really good hit. It was a very good experience. He's a nice guy. He was interested in what I did. It was good."

Evans is not the type of person to get over-excited about his achievements, even when they are as exciting as his successes in New York.

He feels he can play better than he did against Tomic, who remains a frustrating talent and played a very passive match.

Evans said: "I played well, but I missed quite a lot. I didn't serve great. I served pretty decent at times when I needed to.

"In the last match, I was really clinical. I could have been a bit more clinical. Maybe (I'm being) a bit harsh (on myself). I just won against Tomic."

Robredo is a former top-10 player who has climbed swiftly back up the rankings this season following a long spell out through injury.

The 31-year-old is best known as a clay court specialist and he reached the quarter-finals of the French Open this year after winning three straight matches from two sets to love down.

But he has made the fourth round at Flushing Meadows seven times, beating Marat Safin and Jo-Wilfried Tsonga back to back in 2008 and leading Novak Djokovic by two sets to one.

Evans feels an affinity with the Spaniard because they both have one-handed backhands, and he said: "I've watched him quite a bit. I take a bit more interest in people that have one-handed backhands.

"I'm sure Andy (Murray) will tell me a few things about him. He can win a few five-set matches I've heard."

Robredo admitted after easing past Canada's Frank Dancevic that he knew nothing at all about Evans.

The Spaniard said: "We will be studying him, asking about him, we will be checking everything because it's the third round of a grand slam. We will try our best.

"Obviously if he's in the third round of a grand slam then he's doing great. He beat Nishikori in the first round and he's a very good player, especially on the hard courts."

Asked if he was surprised to be facing Evans, Robredo said: "It's tennis. Surprising is nothing.

"I saw a couple of points (against Tomic). He served pretty well. He hits the ball very cleanly so it's a tough opponent, especially here.

"He's never played me either. Obviously if you've seen a player a lot of times you know exactly how to play him. But it's a tennis match and I will try my best."